我的目的是在表格按钮元素上添加新行,但是当我单击按钮元素时没有任何反应。
我尝试检查是否选择了错误的元素,但是似乎所有内容都已被感性地反映。当我尝试在控制台中调试代码时,找不到任何要修复的错误。谢谢您的任何投入或帮助。
<!DOCTYPE html>
<html>
<head>
<title>Table project</title>
<style>
table {
background-color: #00FFFF;
}
</style>
</head>
<body>
<table id="x" border="1">
<thead>
<tr id="row0">
<th scope="col">#</th>
<th scope="col">First</th>
<th scope="col">Last</th>
<th scope="col">Handle</th>
</tr>
</thead>
<tbody id="tbody2">
<tr id="row1">
<th scope="row">1</th>
<td>Mark</td>
<td>Otto</td>
<td>@mdo</td>
</tr>
<tr id="row2">
<th scope="row">2</th>
<td>Jacob</td>
<td>Thornton</td>
<td>@fat</td>
</tr>
<tr id="row3">
<th scope="row">3</th>
<td>Larry</td>
<td>the Bird</td>
<td>@twitter</td>
</tr>
</tbody>
</table>
<button id="btn"> Enter Row </button>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js" type="text/javascript"></script>
<script type="text/javascript">
$(document).ready(function() {
$('#btn').click(function() {
$("#x tbody2").append(
"<tr>" +
"<td>Shit</td>" +
"<td>All over</td>" +
"<td>Myself</td>" +
"</tr>"
);
})
})
</script>
</body>
</html>
答案 0 :(得分:0)
您可以使用$("#tbody2")
选择正文。使用$("#tbody2 > tr").length
获取<tr>
<!DOCTYPE html>
<html>
<head>
<title>Table project</title>
<style>
table {
background-color: #00FFFF;
}
</style>
</head>
<body>
<table id="x" border="1">
<thead>
<tr id="row0">
<th scope="col">#</th>
<th scope="col">First</th>
<th scope="col">Last</th>
<th scope="col">Handle</th>
</tr>
</thead>
<tbody id="tbody2">
<tr id="row1">
<td scope="row">1</td>
<td>Mark</td>
<td>Otto</td>
<td>@mdo</td>
</tr>
<tr id="row2">
<td scope="row">2</td>
<td>Jacob</td>
<td>Thornton</td>
<td>@fat</td>
</tr>
<tr id="row3">
<td scope="row">3</td>
<td>Larry</td>
<td>the Bird</td>
<td>@twitter</td>
</tr>
</tbody>
</table>
<button id="btn"> Enter Row </button>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js" type="text/javascript"></script>
<script type="text/javascript">
$(document).ready(function() {
$('#btn').click(function() {
var count = $("#tbody2 > tr").length + 1;
$("#tbody2").append(
"<tr id='row" + count + "'>" +
"<td scope='row'>" + count + "</td>" +
"<td>Shit</td>" +
"<td>All over</td>" +
"<td>Myself</td>" +
"</tr>"
);
})
})
</script>
</body>
</html>